provosts, canons and prebendaries Each diocese has a cathedral that is the mother church and home to the diocesan bishop's cathedra or throne. Some dioceses have more than one cathedral for historical reasons. As cathedrals are sacramental, liturgical and administrative resource centres for their dioceses, their clergy are usually among the most senior in the diocese. Different member churches of the Anglican Communion have different structures of cathedral clergy. The Church of England has perhaps the most complex system. In England, the senior priest of a cathedral is called the dean (until 2000, some used to be known as provosts instead). The dean is assisted by other senior clergy who are called canons or prebendaries. These have different roles within the cathedral community. For example, a Canon Treasurer is responsible for the fabric and finance of the cathedral, a Canon Precentor is responsible for the worship of the cathedral and a Canon Chancellor is responsible for the archives and libraries of the cathedral. Some non-cathedral clergy are awarded the title of Honorary Canon or Prebendary as a particular distinction. Some cathedrals have minor canons who are similar in status to an assistant curate in a parish church. Besides cathedrals, the Church of England (and now also both the Church in Wales & Anglican Church of Canada) has a number of collegiate churches and royal peculiars that function in a similar fashion, but do not have a bishop's throne with the expectation of the Church in Wales collegiate church of St Mary's Church, Swansea has a Bishop's throne. Other member churches of the Anglican Communion have much simpler cathedral arrangements. Most other cathedrals are also parish churches. In the Scottish Episcopal Church, the senior priest of a cathedral is a provost. In the Anglican Church of Canada, a cathedral's senior priest is known as the rector of the cathedral and a dean of the diocese. Deans and provosts are styled the Very Reverend, while canons and prebendaries (but not minor canons) are styled the Reverend Canon or Prebendary. In many provinces of the Communion, the title of "canon" is a gift of the bishop, which may be given to senior or distinguished clergy — and in some cases, to laypeople ("lay canons"). Many Anglican dioceses group parishes within an archdeaconry into subdivisions known as deaneries. To distinguish them from the posts of cathedral deans they are often called rural deaneries, regional